1. What Are Setup and Hold Times? Answer: Setup/Hold Time refers to the timing requirements between the input signal and the clock signal for testing chips. Setup time is the time during which the data must remain stable before the rising edge of the clock signal arrives at the flip-flop. The input signal must arrive … Read more
– FPGA is Amazing – Chengdu University of Electronic Science and Technology Youth Education FPGA, as a leading chip product in China, is not limited to purely researching and designing chips compared to traditional chips. It optimizes design for various products through specific chip models.FPGA itself constitutes a typical semi-custom circuit, covering digital management modules, … Read more
FPGA, as a leading chip product in China, is not limited to purely researching and designing chips like traditional chips, but optimizes designs for products across various fields through specific chip models.FPGA itself constitutes a typical semi-custom circuit, covering digital management modules, input, output, and other units. The biggest feature of FPGA is that it … Read more
What is FPGA? This question has been asked by many people, including some students in electronics. In fact, this is not new. Although FPGA is not a new thing, it has indeed been in contact with very few people in the past 30 years. Currently, there are only about a thousand FPGA engineers in China … Read more
Click the “Read Original” at the bottom of the article to watch selected IC design courses for free! ASIC Design Process 1. Define Project Requirements 1. Determine the specific indicators of the chip: Physical Implementation Manufacturing process (foundry and process size); Die area (DIE size, affected by power consumption, cost, digital/analog area); Packaging (larger packaging … Read more
Instruction Register (IR) 指令寄存器 The purpose of the Instruction Register (IR) is to shift in instructions via the TDI signal. Additionally, the instruction register can hold the current instruction until the new instruction is completely shifted in. Generally, an IR consists of two registers as shown in Figure 1. The Hold register stores the previous … Read more
This article introduces the usage of DSP48E2 instantiation, as follows: DSP48E2 #( // Feature Control Attributes: Data Path Selection .AMULTSEL("A"), // Selects A input to multiplier (A, AD) .A_INPUT("DIRECT"), // Selects A input source, "DIRECT" (A port) or "CASCADE" (ACIN port) .BMULTSEL("B"), // Selects B input to multiplier (AD, B) .B_INPUT("DIRECT"), // Selects B input … Read more
Hardware Description Language (HDL) is the cornerstone of modern digital system design, used as the core tool to describe hardware behavior and structure in both Field Programmable Gate Arrays (FPGA) and Application-Specific Integrated Circuits (ASIC). However, the fundamental differences in implementation, design processes, and target applications between FPGA and ASIC lead to significant differences in … Read more
Concept of Logic Analysis The logic analyzer is also a very commonly used instrument, just like the oscilloscope, and is one of the classic instruments for digital design and measurement. When measuring digital circuits, when should an oscilloscope be used? Generally, an oscilloscope can be used when precise parameter information (such as time intervals and … Read more
Hello everyone, I am the owner of a WeChat subscription account that spreads second-hand knowledge about digital chip design. Today, I want to share with you the “Four Essential Tools” for ASIC design: Fold, Expand, Retiming, and Resource Sharing. Fold & Expand Fold & Expand, folding and unfolding One clock cycle yields a result, using … Read more